Cash-register.



F. L. FULLER.

CASH REGISTER.

APPLICATION FILED JULY I0. 1915;

1,301,678, Patented Apr. 22, 1919.

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CASH REGISTER.

APPLICATlON FILED JULY I0. ISIS- I0 SHEETSSHEET 3.

F. L. FULLER.

CASH REGISTER.

APPLICATION FILED IULY 10.1915v 1,301,678. Patented Apr. 22,1919.

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CASH REGISTER.

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APPLICATION FILED JULY 0.1915. 1,301 ,678. Patented Apr. 22, 1919.

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F. L. FULLER.

CASH REGESTER.

APPLICATION FILED JULY I0, m5.

Patented Apr. 22, 1919.

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F. L. FULLER.

CASHREGISTER.

APPLICATION FILED JULY H1. I915.

Patented Apr. 22, 1919.

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CASH REGISTER.

APPLICATION FILED JULY 10.1915. 1,301,678. Patented Apr. 22, 1919.

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F. L. FULLER.

CASH REGISTER.

APPLICATION FILED JULY 10. '91].

Patented Apr. 22, 1919.

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UNITED STATES PATENT OFFICE.

FREDERICK L. FULLER, OF DAYTON, OHIO, ASSIGNOR TO THE NATIONAL CASH REGISTER COMPANY, OF DAYTON, OHIO.

CASH-REGISTER.

Application filed July 10, 1915.

To all whom it may concern:

Be it known that I, FREDERICK L. FULLER, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Cash-Registers, of which I declare the following to be a full, clear, and exact description.

This invention relates to accounting machines and the like and more particularly to that type known as ten key machines.

It is usual in accounting machines of the various types to provide manipulative amount determining means for controlling the amount differential mechanism of the machine and special manipulative means for controlling the indicating or recording of special characters to identify the clerk making each transaction, the class of each transaction, etc. Special and separate manipul'ative means are also employed in some accounting machines for controlling the selection of individual totalizers or counters for operation or for disabling the tot-alizer engaging mechanism on certain operations.

It is the principal object of this invention to construct a machine so that common manipulative means serve to accomplish the different functions of a plurality of mani ula'tive means of different classes, hereto ore employed. In the present formof embodiment disclosed herein oneseries of keys is employed to perform the functions previ ously performed by two or more adjustabl levers or series of keys of different classes, thus reducing the space required by a plurality of levers or series of keys as well as simplifyin the construction and operation of the mac line.

It is thought that the present invention isthe first in the art to provide a machine employing a series of keys each key being used to accomplish the different functions formerly accomplished by separate keys or levers. In the illustrative form of embodiment disclosed herein one series of keys is employed to control theamount diiferential mechanism of the machine and also to control the indicating and printing of words or characters to identify the classes of transactions and the clerks making-the particular transactions.

Specification of Letters Patent.

Patented Apr. 22, 1919. Serial No. 39,113.

It is a further object of this invention to provide means controlled by the keys representing credit transactions or a no sale for disabl ng the mechanism for establishing operative relation between the totalizer and the actuating mechanism so that when one of these keys is operated to represent a transaction or a no sale the amount set up by the keys will not be entered in the totalizer.

A still further object of this invention is to provide a novel form of escapement mechanism for positively moving the item wheels nto position to be operated by the keys and into operative relation with the differential mechanism of the machine.

To construct novel mechanism for positioning the indicating mechanism under the control of the keys and to provide means for concealing the indication when one of the keys is operated in a certain order were also objects of the invention.

With these and incidental objects in view, the invention consists in certain novel features of construction and combinations of parts the essential elements of which are set forth in appended claims, and a me ferred form of embodiment of which is hereinafter described with reference to the drawings which accompany and form part of the specification.

Of said drawings A Figures 1 and 2 combined constitute a front elevation of the entire machine embodying the present invention, the cabinet being removed to expose the mechanism of the machine to view.

Fig. 3 is a detail view of the portion of the cabinet of the machine provided with sight openings through which the items set up on the item wheels can be viewed.

Fig. 4 is a detail top plan view of the machine with the indicator tablet carrying frames, the printing mechanism and the totalizing mechanism broken away.

Fig, 5 is a transverse vertical section taken on the line AA of Figs. 1 and 4.

Fig. 6 is a detail view of the mechanism employed to restore the item wheels to zero position.

Fig. 7 is a transverse vertical section taken on the line BB of Figs. 2 and 4.

Fig. 8 is a detail view of the device our Fig. 12 is a detail view ofthe cum and-em for operating the means shown in Figs. 5

undt for restoring the item wheels to zero position.

Fig. 13 is adeteil view of the full-stroke device, employedto prevent backward rotationof the; operating mechanism Fig. 14 is cdetail view in pers active-of a partof the no-sale indicator to. let.

Fig. 15 iss detail transverse sectionalview through the sleeves and the segment;

gears operated by the item wheels.

Fig. '16 shows a part of thedetail strip printed by the mach ne.

;. Fig. 11 .is a. detailsideview of'part ofthe mechanism for shifting the item wheels upon operation of the keys.

Fig. 17' is a cletailviewof several of the locking devices for preventing. the simul- :taneous operation of two keys.

Fig. 1 is a transverse vertical section through the machineshowing the printing and totalizing mechanisms the section being taken on the line CC in l ig. 1'.

Fig. 19 is npdetflil view in front elevation of the totalizin' mechanism.

F' 20 an 21 are detail views of the trans ermeclmnism. Eig. 20 shows the position of etrensferdevice when the tote-liner wheel is in engagement with the actuator and Fig. 21 showstheposition oithe transfer dev ce after the totalizer, wheel ,is-moved outof engagement with the actuator andbe fore the transfer is completed.

Fig. 22 is a detail transverse sectional view through. the type carriers and their sleeves. Inthe presentformof embodiment shown inthe drawings, ten amount keys are pro.- vided (as shown in Fig. 4). Eachke rep- Y resents one ofthe digits from 0 to inclusive, and also representsa clerks-initiul. Four of the keys; in ndditionto re amounts and. nitials, re resent e classes of transaction, such as ens ,--poid out;

.charge, and frec'eivedion. account. One

I oi ,the-keys-alsorepresents a. no sale key;

It will be obvious; from the description which:

is to follow that. more-ofathe keys may be em loyed to represent classesoftransactions such as 0,. Q. 13., bills due, goods delivered., etc. e 1

The keys are so constructed as tooperate diflerentiully a. single actuator from normal position, theextent of eachmovement of the resenting.

actuator being commensurate to the value represented by the key .operated.- The extents of movement'of the actuator are imported to item wheels which, through escapement mechanism controlled in the keys are successively into cur then beyond operative relation-with the actuator. As the item wheels are shifted beyond operative relation with the actuator they are shifted into operative relation with s ent gears connected to the indicating meii a fnism, and tothetype. wheels. There are as many segment gears as there are item wheels and upon each operation of a. key each of the item wheels, whichheve moved difierentially by. the preceding operations of .-keys, issh-ifted outofi engagement with one segment'gear and-into engagemsntwith the nest segment mec anism t e item. wheels. arm-rotated to zero positiomto impart their differential movement. to the-segment gears. After the item wheelsvare-rotated to zero position they are-shiited: back. to normal position by a shiftin A cam The-,- last heyv depressed, throng the-item. wheel inoperatime-v relation with theiaetuutor during-the operation of the key, controlsuthe indicatingmeohanism end the type-wheel for indicat ng and printing characters. representing ,-the class. of, transaction and-the second. mm the last key depressed controls-the indiout' a; mechanism nnd the: typo carrier for in icetingfsmd printing the"-clerk s initial: The keys depressed. before-the Jest-two. keys, through the-item wheels. controlledrthereby, control the indicating mechanism, and the amount type carriers for indicating and printing amounts.

The amounttype-carriers nlso-nctuate the totalizer. I fan. t-onerof the keys representi .n. aid out. or the e tmnsaotiongor a. no isthoilastikey-openated thertotal- U. jon on o erationof. thermal-in operating izer en fiilngy mechanism. is: automatically disabl ereby: iiit is notalready disabled so: that. the-;-umounts set-.np, on the amount carriersxwill not bewegistered on-the to Operating The machine is o eluted by means of a crank handle-25.-

:g; 2) looselymounted on. an stud roj;ecting. -from the right; hand fname oiwith the crankhandle'25, meshes with an mtermed'iete. inion 27*; ottheqsame size and thelatter p nion in-turmmrsheawith c r 28 rifi'dly. mounted. one! main drive aft 29, w eh. fl't'jifisflizifht 'hand-endis :j our naled ina flame-.23. -=ut its 'left-v hand: end in a iramB'MnOTi 1gb The-pitoh:lines--of these pinions 26 an :2 endtlie g'earQB areindicated'liythe-dot-dtsh lines in Fig.1. The

gear wheel 28 is twice as large as eecliiof'the.

eimuchlhe. A pinion 26, rigid pinions 26 and 27 so that it is necessary to give the crank handle two complete rotations to impart one rotation to the main drive shaft at each operation of the machine.

In order to prevent the crank handle from being rotated backwardly the following described frictional device is employed. The gear 28 has a circular groove 30 (Fig. 13) formed in its right hand face. As this groove 30 extends nearly through the gear the latter is strengthened by a disk 31 (Figs. 2 and 13) which is rigidly connected to or integral with the gear. An arm 32 is loosely mounted at its lower end on a stud 38 projecting from the right hand frame 23 of the machine and at its upper end the arm has a flange 33 projectin into the groove 30. A roller 34 is positioned between the flange 33 and the outer circular surface of the groove 30 the roller being held in engagement with the flange and this surface by a plunger pin 35 slidably mounted in a projection 36 on the arm 32 and normally held against the roller b a spring 37 coiled about the plunger pin. he flange 33 rests on the inner circular surface of the groove 30. It can be seen from the above description that when the gear 28 is rotated in the direction of the arrow shown in Fig. 1'3 the roller does not frictionally connect the arm 32 and the gear and, therefore, the gear can be rotated in this direction by the crank handle to operate the machine. owever, if it should be attempted to rotate the gear wheel baclnvardly, that is, in the direction opposite to that indicated by the arrow, the roller would be wedged tightly between the flange 33 and the outer cylindrical surface of the groove 30 thereby frictio-nally connecting the gear wheel and arm 32 to prevent such rotation.

Key-board.

As above stated, the machine is provided with ten keys 40 (Figs. 1, 2, 4, 5, 7 and 18) which are in the form of levers. As shown in Fig. 4, the key label on each key carries the digit and the clerks initial represented by the key. The labels of the 0, 1, 2, and 3 keys also carry characters or words representin cash, paid out, charge, and receive on account transactions respectively and the label of the 9 key carries the words No sale. All of the keys are pivoted on the main drive shaft 29 and near their forward ends pass through slots 41 (Fig. 7) formed in the cabinet of the machine, the slots bein provided to permit operation of and gui e the keys. Springs 42, which are connected at their rear ends to downwardly extending arms 43 of the key levers and at their forward ends to a cross rod 44, normally serve to retain the keys in the normal position shown in the drawings and also to restore the keys to such position after they have been depressed.

Each key is provided with a slot 46 and a rod 47 projects through these slots and 1s normally in the position shown in Figs. 5

and 7. The rod. 47 is supported at its ends by two arms 48 (Figs. 1, 2, 4, 5 and 7) loosely mounted on a cross rod 49. All of the rearwardly (and nearly longitudinally) extending portions of the slots 46 are alike, and are concentric with the shaft 49. The upwardly and rearwardly extending portions of these slots, however, are d1fi'ere11- tially inclined rearwardly the extent of inclination being proportional to the digits represented by the keys. The upwardly extending portion of the slot 46 in the zero key (see Fig. 5) is concentric with the'main drive shaft 29 so that when the zero key is depressed the rod i7 is not moved rearwardly. However, when any other key is operated the rod i7 is moved rearwardly a number of steps corresponding to th value represented by the key, the arms 4.8 being swung counter clockwise about the cross rod 49. For example, if the 1 key is depressed the rod 4-? is moved one step. If the 2 key is depressed the rod is moved two steps and so on, the 9 key being adapted to move the rod nine steps. A lever 50, having a segmental rack portion 51 at its upper end, is loosely mounted on the cross rod l9 and has a forwardly projecting portion 5:2 (Figs. 1, land 5) through which the rod 47 passes so that the movement im parted to the rod 47 by the keys is also imparted to the lever 50 which will be called herein the actuator. The actuator 50 has an arm 53 extending downwardly from the cross rod 49 and connected to a sprin 5i serving to retain the actuator 50, the ro l7, and the supporting arms 48 in their normal position and to return them to such position after they have been moved differentially by a key. hen any but the zero key is depressed it can be seen that the rod L7 is moved into the rearwardly extending portions of the slots 46 in the undepressed keys whereby the undepressed keys are locked against operation.

In order to prevent the simultaneous depression of two or more keys a well known form of locking devices 400 (Figs. 5, 7 and 17*) is provided. These devices are in the form of arms pivoted on the cabinet of the machine, there being one arm for each key. When a key is depressed it separates and moves between the upper ends of two of the arms and the movement of the arms is limited so that but one key can move between them at'a time as is well known in the art,- whereby two keys cannot be depressed simultaneously.

For the purpose of preventing operation of the n'ia chine during the operation of a key and also to prevent operation of a key after the operation of the machine has be- &

gun and for fmther locking all unoperated keys while one key is being operated,-; the following described locking mechanism is provided. A red 57 is supported near its ends by two arms 58 (Figs. 1, 2 and loosely mounted on a cross rod 59 mounted in the frame of the machine. The rod 57 extends through the upwardly and forwardly extending arm of a lever 60 (Figs. 2 and 7 also loose on the cross rod 59. The rearwardly extending arm of the lever (30 carries a pin 61 which is normally opposite or below the entrance to a slot 62 (Fig. 7) formed in a disk (33 fast on the main drive shaft 29. The rod 57 projects through angular slots (5-4 also formed in the keys. The lower portions of the slots (ii are concentric with the cross rod 59 and the upper portions of the slots (34 are straight and inclined forwardly and upwardly so that when a key is depressed the rod "7 is forced downwardly as the upper end of the slot 64 in the depressed key moves down over the rod. As the lower portions of the slots 61 are (-oncentric with the rod 59 it can be seen that the rod 57 moves idly in these portions of the slots in the undepressed keys and therefore such movement of the rod would also prevent operation of a second key while one key is out of normal position. Movement of the rod 57 in this manner rocks the lever 60 clockwise (Fig. 7) thereby raising the pin 61 into the slot 62 which is also concentric with the rod 59. It will readily be seen that the pin 61 will remain in the slot 2 as long as any one of the keys is out of normal position. Movement of the pin 61 in the slot ('32- prevents rotation of the disk 63 and hence operation of the machine while a key is out of normal position. During the operation of the machine the slot 62 is carried away from over the pin 61 and, therefore, a key cannot be depressed during an operation of the machine as the pin 61 u on such attempted operation of akey won (1 engage the solid periphery of the disk 63.

The rod 57 is preferably formed with two adjoining flat surfaces substantially at ri ht angles, the apex formed by said surfaces eing adapted to cooperate with the apex formed 10 the forward walls of the slot 64 so as to one a close locking point to look all remainin keys as soon as any one of the series is slig itly depressed.

A. spring 65 (Fig. 7 connected at one end to the 1od,57 and at its opposite end to the machine frame, normally serves to retain the rod 57, its supporting arms 58 and the lever 60 in normal position and assists the depressed key to restore these parts to normal position during the upstroke of the key.

I tam wheels.

The differential movement of the actuator 50 upon depression of a key, is imparted to one of a plurality of item wheels 66 (Figs. 1, "2, 4-, 5 and 6) during the differential movement of the actuator from normal position. For the sake of illustration only five item wheels are shown, and each wheel is provided with teeth 67 over a portion of its periphery and the remaining portion of the periphery is provided with a flange (38. As shown in Figs. 1 and l, the flanges of the lirst four item wheels counting from the left have the digits 0 to 9 inclusive consecutively arranged thereon and the flanges on the second, third, and fourth item wheels also have characters representing the classes of transactions and no sale, while the periphery of the fifth or last item wheel counting from the left is provided only with charm-tors representing the classes of transactions and no sale. The item wheels are loose on a sleeve 70 (Figs. .4. and 10) slidably mounted on a cross rod T1. which is supported at its right hand end in the frame 23 and at its left hand end in an upright frame 168. Spacing collars 7L placed between the adjacent item wheels, a collar 73, mounted on the. left hand end of the sleeve 70, and a collar 7%, fastened to the right hand end of the sleeve by a screw 75, serve to prevent longitudinal movement of the item wheels relative to each other and to the sleeve 70.

The item wheels are normally in zero position (Fig. 5). Upon depression of the keys the sleeve 70 with the item wheels is moved step by step toward the left side of the machine to move the item wheels successively into and out of engagement with the segmental gear portion 51 of the actuator 50. Considering all parts in normal position, during the initial portion of the downstroke of a key the item wheels are shifted one-half step to move the left hand one of them into enga ement with the actuator so that during ifferential movement of tie actuator from normal position upon continued-depression of the key, this movement of the actuator is imparted to the item wheel in enga ement therewith and then near the end 0 the downstroke of the key the item wheels are shifted one-half step farther to move the actuated item wheel out of engagement with the actuator.

The lower ends of the upwardly extending portions of the slot 46 (Figs. 5 and 7) in the keys are formed with a dwell so that during the initial portion of the downstroke of a key, at which time the adding wheels are shifted one-half step, the rod 47 and, therefore, the actuator 50 is not moved and the upper ends of these portions of the slots are also formed with a dwell so that near the end of the down stroke of a ke at which time the item wheels are shifte another half step, the rod 47 and therefore the actuator is not moved. It can, therefore, be

seen that the upwardly extending portions of the slots 46 are so formed that the actuator 50 is rocked differentially onl during the central portion of the downstrofie of the key at which time one of the item wheels 66 is in engagement with the actuator.

I mm wheel shifting mechanism.

The means for shifting the item wheels 66 will now be described. A bar 78 (Fig. 2) has a series of teeth 79 formed in its upper edge and a series of teeth 80 formed in its lower edge and is rigidly connected near its left hand end by the screw 75 (Figs. 2, 4 and 10) to the sleeve and at its right hand end the bar is rigidly connected to a member 81 (Figs. 2, 4 and 7) loosely mounted on a sleeve 82 surrounding the cross bar 71. A lever 84 (Figs. 2, 7.and 17) is loosely mount ed on the cross rod 59 and has a forwardly extending projection 87 (Fig. 7) through which the rod 57 extends. The lever 84 at its upper end carries integral therewith a curved plate or flange 85 which is concentric with the shaft 59. The plate 85 is provided with the cam ridge 86, a top plan view of which is shown in Fig. 4. This cam ridge 86 engages between the teeth 80 on the bar 78 as shown in Fig. 2. During the initial portion of the down stroke of the key, at which time it will be remembered the actuator is not moved, the forward cam portion 88 (Fig. 4) of the cam ridge 86 moves between two teeth 80 on the bar 78 and thereby shifts the bar 78, the sleeve 70 and the item wheels one-half step toward the left so that the teeth on one of the item wheels are moved into engagement with the teeth on the actuator 50. It will be seen that the lever 84 is rocked forwardly an invariable extent upon each depression of the key and then returned to normal position as the rod 57, which is operated an invariable distance by the keys, passes through the projection 87 (Fig. 7) of the lever 84 as above stated. As the central portion 89 of the cam ridge 86 passes between the teeth 80 the item wheels are not shifted and during this time the actuator is being moved differentially by the key so that the item wheel in engagement therewith is moved a like extent. Finally after the actuator has been moved differentially and during the end of the downstroke of the key the camming portion 90 of the ridge 86 moves between the teeth 80 and shifts the item wheels another half step so that none of the item wheels are in engagement with the actuator during the re turn movement of the latter to normal position.

Near the end of the forward stroke of the lever 84 the rack bar 78 is raised so that during the return movement of the lever 84, which is effected upon the upstroke of the operated key,-the cam ridge .86 will he eat of engagement with the teeth of the bar and hence will not shift the item wheels toward the right (Figs. 1 and 2). To this end an arm ordisk 93 (Fig. 17) is fast to the Sleeve 82 on the cross rod 71. Also rigidly mounted on the sleeve 82 is an arm 94 having a flange 95 normally in such a position that when the lever 84 is swung forwardly the plate 85 on the lever 84 moves over the flange 95. An arm 96 is also fast on the sleeve 82 and supports the left hand end of a cross rod 97 which at its opposite end is supported by an arm 98 (Figs. 2, 4 and 7) fast on the sleeve 82. The rod 97 passes through the member 81 the latter being free to move longitudinally of the rod 97 and the sleeve .82. The disk 93 carries a projection 99 (Fig. 17) which projects into a slot 100 (Fig. 4) formed in the plate 85. Near the end of the forward stroke of the lever 84 the rear end of the slot 100 engages the projection 99 and rocks the disk 93, and therefore the sleeve 82 and the arms 94, 96 and 98, fast upon the sleeve, counter clockwise as viewed in Fig. 7. In this manner the rod 97 is swung rearwardly and as this rod passes through the member 81 the latter is also rocked with the sleeve 82 thereby raising the rack bar 78 out of engagement with the ramming ridge 86.

The arm 98 has two notches 104 (Fig. 7) formed in its upper end and in the rear notch normally engages the nose of a pivoted pawl 105 operated b a spring plunger 106 mounted in a lug 10 on the frame of the machine. It can be seen that when the bar 78 is raised the pawl engages in the forward notch 104 to retain the bar in elevated position during the return movement of the lever 84. Near the end of the return movement of the lever 84 to normal position the forward end of the slot 100 engages the projection 99 of the disk 93 thereby rocking the disk 93, and arms 96, 98 and 81 to normal position to lower the bar 78 to normal position in which position the cam ridge 86 engages between two teeth 80 on the bar. When the rack bar 78 is raised near the end of the forward stroke of the lever 84, as above described, an edge 101 (Fig. 7) of an alining arm 102 engages between the teeth 79 of the rack bar and thereby prevents any accidental shifting of the rack bar and the item wheels during the return movement of the lever 84 to normal position. The arm 94 is rocked counter clockwise (Fig. 7) with the-sleeve 82 when the rack 78 is raised so that during the return movement of the. lever 84 to normal position the flange 95 of the arm 94 is over the plate 85 of the lever 84 positively to lock the rack bar 78 .in its elevated position. When the forward end of theslot 100 upon return movement of the lever 84 to normal position engages the projection 99 of the disk 93 the plate 85 has moved from under the flan e 95 on the arm 94 so that the more ment the bar 78 to normal position is permitted. As shown in Fig. 4 the left hand side of the late 85 is cut away at its rear end to permit movement of the flange 95 to normal osition.

For t e purpose of compelling the com plete depression of a key after it has been depressed partially the arm 96 has a downwardly extending tooth 109 (Fig. 17) which engages the plate 85 on the lever 84. The tooth 109 normally engages the plate 85 at a point in front of a perpendicular line 1 1 th axis of the cross rod 71 so that the p ate 85 can normally move forwardly. However, after such forward movement is begun and before it is completed the lever 84 can not be moved back to normal position because such attempted return movement would wedge the tooth 109 firmly against the plate 85 and hence prevent the movement. It is obvious that since the lever 84 can not be moved rearwardly until it has completed its forward movement the keys h h DO e the lever 84 must be depressed completely before they can be returned to normal position. At the end of the forward movement of the lever .84 the arm 96 is rocked clockwise (Fig. 17') as above described, so that during the return movement of the lever the tooth 109 is out of engagement with the plate 85.

During the Operation of the machine the item wheels 66 are shifted toward the right to normal position b a shifting lever 111 (Figs- 2, 1, 7 and 8; having a. cam ridge 112 for cooperating with a roller 113 (Figs. 2 and 4) mounted on the member 81. The lever 111 is rocked forwardly during each 0 eration of the machine and the right side o the ram ridge 112 engages the roller 113 at any position in which the roller may be andthereby shifts the member 81, the rack ar 7. the SlfiOVe 70, and the item wheels moun ed n the sleeve 70 to normal p sition. The lever 111 is loosely mounted on the Gross rod 59 and is rigidly connected at 14 1 9 a member 115 8) also loosely mounted on cross rod 59. The member 115 carries a pair of rollers 116 and 118 engag- 33. he peripheries of a pair of cams 117 and 119- respectively fast on the drive shaft 29.- T ese cams 117 and 119 are so constructed that after the item wheels are roo 7&0, as will bedescribed later. the lever 11 is rocked clockwise, as viewed in Figs. 7 and g, to shift the item wheels to orm l position as above stated, the lever 1111 then moved back to normal position.

As the rack bar 78 is returned into engagranwt with the cam ridge .86 on the le- Yer up n each perati n of a key, it is .1. engagement therewith at the beginnin of the operation of the machine. It is, therefore, necessary to elevate this rack bar out of engagement with the cam ridge 86 to ermit the shifting of the rack bar and item wheels to normal position. The alining arm 102 (Fig. 7) is designed to perform this function. This arm is loosely mounted on the cross rod 59 and has a rearwardly projecting portion 121 carrying a roller 122 which projects into a cam groove 123 formed in the face of a disk 121 fast on the drive shaft 29'. '1 The cam groove 123 is so designed that. near the beginning of the operation of the machine the arm 102 is rocked counter clockwise (Fig. 7) so that its shoulder 125 engages the crOSS rod 97 to move the latter rearwardly whereby the rack bar 78 is raised so that the latter and the item wheels may be shifted to normal position. Near the end of the operation of the machine the arm 102 is rocked clockwise past normal position and then counter clockwise to normal position and during its clockwise movement its shoulder 126 engages the cross rod 97 to swing the latter to normal position thereby moving the rack bar 78 into engagement with the cam ridge 86. When the rod 97 is moved rearwardly during the operation of the machine as above described, the lever 84 is moved slightly clockwise (Fig. 7) by the movement of the arm 93 because of the engagement of the projection 99 with the forward end of the slot 100, whereby the lever is moved slightly clockwise. The periphery of the disk 63 is cut away slightly at 120 to permit this movement of the lever 60 the pin 61 on the lever 60 being adjacent this portion of the periphery of the disk 63 when the lever is rocked.

As the item wheels are shifted step by step upon operation of the machine they display the characters or digits corresponding to the keys actuating the item wheels through sight openings 128 (Fig. 3) formed in the cabinet of the machine. Part of the right hand sight opening is covered with colored transparent glass or celluloid 128.

As each item wheel is shifted after being ac tuated it moves behind the right hand sight opening and then upon operation of the item wheels to the right it moves successively behind the sight openings to the left. In Fig. 3 the item wheels show that there has been five depressions of keys. The 5 key was first depressed to represent $5; the 6 key was then depressed to represent 60 cents and the 5 key was again depressed to represent 5 cents, the total amount represented by the depressed keys being $5.65. The 7 key was then depressed to represent that the clerk, to whom the initial M was assi ned,madethe transaction. Finally the 3 ey was openated to represent that $5.65 was received on account, as the character displayed through the uncovered portion of the right hand sight opening indicatcs the class of the transaction. The first four sight openings 128, counting from the left, are equi-dista-nt apart so that the digits on the item wheels are displayed through them. The uncovered portion of the right hand sight opening, however, is a greater distance from the sight opening, throu h which the number corresponding to the c erks initial is indicated so that the characters representing the classes of transactions are displayed through the uncovered portion of this right hand sight opening. It can be seen that the right hand item wheel is not provided with digits as this wheel is only designed to indicate the classes of transactions. The second, third, and fourth wheels, however, have digits and characters so that if there are less than five but more than one key depressed the item wheel last actuated by the actuator displays a charactor through the right hand sight opening to indicate the class of transaction. After each digit of an amount or a digit representing the clerk is set up it can be Seen through the colored glass or celluloid 128* covering a portion of the right hand sight opening.

After an item wheel is actuated by the actuator 50 it is shifted one-half step toward the left, as above described, such shifting movement being designed to move the item wheel into engagement with the right hand one of five segment gears 130 (Figs. 1, 4, and 15). Then, as each following item wheel is actuated each of the item Wheels previously actuated is moved successively into engagement with the segment gears to the left of the right hand segment gear. From this it can be seen that if there has been five depressions of keys all of the item wheels engage the segment gears 130. If less than five keys have been operated only those item wheels operated differentially are in mesh with a corresponding number of segment gears. It will be remembered that the item wheel operated by the last key depressed indicates the class of transaction represented by the key and as this item wheel at the beginning of the operation of the machine is in mesh with the right hand segment gear 130 the latter will be called the transaction segment gear herein. The second segment gear from the right at the beginning of the operation of the machine meshes with the item wheel indicating the numeral corresponding to the clerks initial and therefore the segment gear will be called the clerks segment gear. The third, fourth, and fifth segment gears counting from the right are the units, tens and hundreds segment gears respectively.

In order to lock the item wheels against rotati on when they are out of engagement with either the actuator 50 or the Segment gears 130 during their shiftingmovement a frame 1352 (Figs. 4-, 5 and 11) is provided with tooth 133 arranged in a straight row below the item wheels and parallel with the cross rod 71. The frame 182 is mounted on a cross rod 134- and a shaft 135. The right hand tooth 133 is long, so as to form a ridge engaging between teeth on all of the item wheels when the latter are in normal position. As an item wheel is shifted into ongageu'ient with the actuator 50 it slides out of engagement with this long tooth. The frame 132, as shown in Fig. 11, has a slot 137 through which the actuator moves. As an item wheel is sl'iiftcd out of engagement with the actuator and into engagement with the right hand segment gear 130 it engages the small tooth immmliately to the left of the slot 137 and as it moves into engagw meut with the right hand segment gear 13 it passes out 'of engagement with this tooth. Then as the item wheel is shifted out of engagement with one segment gear 130 into engagement with the next segment gear, the tooth between the segment gears engages the item wheel to lock it against rotation during its shifting movement. In this manner the item wheels are locked against rotation except when they are in engage ment with the actuator or with the segment gears 130.

Printing mac/1072219112..

The segment gears 130 are fast on nested sleeves 110 (Figs. 1., 5, G and 15) surrounding a cross rod 141. As best shown in Fig. 15 the units, tons and hundreds segment gears are fast to the right hand ends of the three outermost sleeves 140. The clerks segment gear is rigidly mounted on the innermost sleeve 140 and the transaction segment gear is fast on a sleeve 14-3 to which the right hand end of a yoke 14-2 is also fast. The left hand end of the yoke is rigidly mounted on the right hand end of the second sleeve from the cross rod 141. The left hand ends of the sleeves 140 rigidly carry segment gears 1 15 (Figs. 1, 4-. 5, 15 and 22) which mesh with segment gears 14G rigidly mounted on the right hand ends of sleeves 147 surrounding the cross rod 71. The Sleeves 117 at their left hand ends carry type wheels 148 (Figs. 4-. 18 and 22). The type wheels have flanges 149 carrying the printing type and a portion of the three left and or amount type carriers are provided with teeth 150. The type carriers are normally in zero position and have imparted thereto the differential movement of the item wheels in engagement with the segment gears 130 appropriate to the type wheels when the item wheels are rotated counterclockwise (Figs. 5 and 6) to zero position by the following described mechanism. It can be seen that the second type carrier from the right prints characters representing the class of transaction as this type carrier through its sleeve 147, segment gears 146, nd 145, sleeve 140, yoke 142 and sleeve 143 is connected to the transaction segment gear. The right hand type carrier is connected through the corresponding connections to the clerks segment gear, and prints the clerks initials, while the remaining three type carriers are connected to the amount segment gears and print amounts.

A cross rod 151 (Figs. 1, 2, 4, 5 and 6) projects through openings 152 (Fig. 6) formed in the. item wheels and is supported at its ends in two segment gears 153 loose on the cross rod 71. The rod 151 is normally in engagement with the forward ends of the openings 152 so that the item wheels may be rotated clockwise (Figs. 5 and G) by the actuator 50. as above described. The distance between the segment gears 153 is sullicient to permit the shifting movements of the item wheels. The segment gears 153 mesh with corresponding segment gears 154. The left hand segment gear 154 is loosely mounted on the outermost sleeve 140 and the right hand segment gear is loosely mounted on the sleeve 143, and the segment gears 154. are connected together by two cross rods 155 and 156, the ends of which are mounted in the segment gears. The upper end of an arm 157 (Figs. 5. 6 and 12) loosely mounted on a cross rod 158, which is carried in uprights or standards 15.) mounted on the base of the machine. is bifurcated to straddle the cross rod 156. Intermediate its ends the arm 157 is provided with a projection 163 (Fig. 1:2) carrying a roller 160 projecting into a cam groove 161 formed in the face of a disk 162 fast on the drive shaft 29. The cam groove 161 is so shaped as to rock the arm 157 counter clockwise (Figs. 5, 6 and 12) near the beginning of the operation of the machlne whereby the segment gears 154 are rocked clockwise and the. segment gears 153 counter clockwise. While the segment gears are being rocked counter clockwise the rod 151 engages the rear ends of the openings 152 in the item wheels and thereby rotates them to zero position. When the item wheels are turned to zero in this manner they impart their differential movement to the segment gears 130 with which they engage, and thereby the type wheels 148 are rotated counter clockwise ('Fig. 18) through the sleeves 140', segment gears 144, segment gears 145 and sleeves 147 so that their type corresponding to the keys depressed are brought to a common printing line.

The detail stri 164 on which the type carriers rint is ed from a supply roll 165 (Fig. 18 over a guide stud 166 under the type earriers and around two guide studs 173 onto a storage roll 167. The supply and storage rolls and the guide studs are carried on the frame 168. No means is shown in the ra ings for feeding the detail strip as any well known feeding means may be employed for this purpose and such means is not necessary to the understanding of the present invention.

An inking ribbon 169 through which the type carriers print on the detail strip is mounted on a frame 176 fast to the frame 168 and is fed over the detail strip and at right angles to the direction of feed of the detail strip by any desired means. The ribbon 169 is fed from a supply roll 171 over a guide roll 172 on each side of the detail strip. and onto a storage roll (not shown) which is similar to the supply roll 171.

A platen 174 (Figs. 4 and 18) for carrying the detail strip against the type carriers is mounted in a frame 175 (Figs. 4, 18 and 19) loosely mounted on the shaft 135. The frame 175 on its right hand side carries a stud 17 61 projecting through a member 177 also loosely mounted on the shaft 135. The member 177 carries a roller 178 projecting into a cam groove 179 formed in the face of a disk 180 having teeth 181 out in a portion of its periphery. The cam groove 179 is so formed that the member 177 is rocked first clockwise (Fig. 18) before the type wheels are moved differentially, retained 111 this position during the differential movement of the type wheels, then rocked counter clockwise past normal position so that the platen forces the detail strip against the type carriers and finally rocked clockwise to normal position.

After the item Wheels are turned to zero, as above described, they are shifted toward the right to normal position by the cam member 111 as also described above, and then after the item Wheels have been shifted to normal position and a printing impression has been taken from the type wheels the arm 157 is rocked clockwise (Figs. 5 and 6) by the cam groove 161 to move the segment gears 154 to normal position. During this return movement of the segment gears 154 the cross rod 156 engages shoulders 182 on the segment gears 130 thereby returning the segment gears 130, the sleeves 140, the segment gears 145 and 146, the sleeves 147 and the type Wheels 148 to zero position. A cross rod 184 which projects through openings 185 (Fig. 6) in the item Wheels and also through openings 186 in the segmentgears 153, is mounted on its left hand end in a plate 187 (Figs. 1, 4 and 5) supportedby .thewshaft 135 and the cross rod 71, and the right hand end of this rod is mounted'iin-the right hand frame 23 of the machine. This rod normally engages the upper-or rear endsofslots 185 in the item wheels and it can be seen that when the item wheels are turned to zero position, this red will serve as a positive stop to prevent movement of the item wheels past such position. A cross rod 190 serves as a posltive stop for the segment gears 154, these segment gears having projections 191 which engage the rod 190 when the segment gears are returned to normal position. Wedge shaped noses 192 (Fig. 5) on pawls 193 loosely mounted on the cross rod 190 engage notches 194, formed in the segment gears 145, when the segment gears arein zero position, the pawls being employed to aline the segment gears 145, sleeves 140, segment gears 130, segment gears 146, sleeves 147 and type wheels 148 in normal position. The pawls 193 are operated by spring plungers 195 mounted between rearwardly extending arms 198 of the pawls and a member 196 fast to. the cross rod 190. Downwardly and rearwardly extending arms 197 of the pawls 193 engage the member 196 .to prevent the pawls from rocking clockwise past normal position when the segment gears 145 are moved. differentially as described.

To tale'zer.

The totalizer comprises six registering wheels 200 (Figs. 18 and 19) loosely mounted on a shaft 201 which is supported at its right hand end in a lever 202 loosely mounted on the shaft 135 and near its left hand end in arm 203 also loosely mounted on the shaft 135. On the lower end of the lever 202 is pivotally mounted an arm 2033 carrying a pin 204 which is adapted to engage in the recess in the lower end of the member 177. As stated hereinbefore, the cam groove 179 in the disk 180 is so constructed that the member 177 is rocked clockwise (Fig. 18) before the type carriers 148 are moved differentially and is retained in moved osition during differential movement 0 the type carriers. It can be seen that upon this clockwise movement of the member 177 the lever 202 will also be rocked clockwise through the arm 2033 thereby rocking the totalizer to engage pinions 205 rigid with the units, tens and hundreds registering wheels with the teeth 150 on the amount type carriers 148 so that the movement imparted tothese type carriers is imparted to the totalizer wheels. -The threeleft hand registering wheels are operated by transfer mechanism when amounts are carried from the hundreds registering wheel as will be described later. After the totalizer has been actuated and before the type carriers begin their return movement to normal position the member 177 is rocked counter clockwise, as above stated, and therefore the totalizer is moved out of engagement with the amount type carriers at this time.

keys to represent the last digit of the amoruit set up on the In order to prevent the registering wheels from being actuated when the 1, 2, or 9 key is the last key operated, the arm 2033 is rocked clockwise (Fig. 18) by depression of the key so that the pin 204 on the arm 2033 is moved out of engagement with the bifurcated end of the member 177 whereby when the member 177 is rocked the totalizer will not be moved into engagement with the teeth on the amount type carriers. It is obvious that as the 1 and 2 keys represent paid out and charge transactions respectively, it is not desirable to enter the amounts of such transactions on the totalizer. The 9 or no sale key is depressed when the operator has discovered that he has depressed in error keys representing an incorrect amount or initial, and, therefore, when this key is the last key depressed the amount set up on the type carriers should not be entered on the totalizer. After the 9 key is operated to represent a no sale the machine is operated in the usual manner. Before he has depressed the last key to represent the class of the transaction the operator can see if he has depressed the proper the amount or initial, as

item wheels can be viewed through the second sight opening 128 from the right, and at the same time the digits in the denominations of higher order can be viewed through the third and fourth sight openings and the digit representing the clerk can be seen under the colored glass or celluloid covering a portion of the right hand sight opening. The connections for disabling the above described means for rocking the totalizer into engagement will now be described.

- The arm 2033 has a slot 206 into which a pin 207 (Figs. 1, 4, 18, and 19) carried by the forward end of an arm 208 projects. The arm 208 is rigidly mounted on a shaft 209 journaled in the standards 159. Immediately to the right of the left hand standard 159 is an arm 210 (Figs. 4 and 5) also fast on the shaft 209 and a similar arm 210 (Figs. 4 and 7) is mounted on the shaft 209 near its right hand end and supported by the forward ends of the arms 210 is a cross rod 211. The lower ends of the downwardly extending arms 43 of the 1, 2, and 9 keys have rearwardly extending projections 212 (Fig. 5) which project over the rod 211 and the downwardly extending arms 43 of the 0 and 3 keys are provided with rearwardly extending projections 213 which project under the rod 211. From the above construction it can be seen that when the' 1, 2 or 9 key is depressed the lower inclined edge of the projection 212 on the key engages the rod 211 and moves it downwardly, thereby swinging the arms 21,0 and the shaft 209 clockwise, as viewed in Fig. 5. Of course, if the rod 211 is already in lowered position the operation of one of these keys will not effect movement of the rod. When the 0 or 3 key is depressed the upper inclined edge of its projection 213 engages the rod 211 and raises it if it is not already in elevated position. As the arm 208 (Fig. 18) is fast on the shaft 209 the arm 208 and, therefore, the arm 2033 is rocked clockwise to move the pin 204 out of engagement with the bifurcated end of the member 177 when the 1, 2 or 9 key is depressed and when the 0 or 3 key is depressed the arms 2033 and 208 are rocked counter clockwise to move the pin 20% into engagement with the bifurcated end of the member 177. Therefore, the arm 2033 is raised, if it is not already in raised position, every time the 0 or 8 key is depressed and the arm is lowered, if it is not already in lowered position, every time the 1, 2 or 9 key is depressed, but as one of these keys is always the last key depressed it can be seen that the last key depressed always determines whether the totalizer will be engaged with the teeth on the amount type carriers or not.

When the arm 2083 is rocked clockwise (Fig. 18) the pin 204 is moved out of the bifurcated end of the member 177 and into an inclined slot 215 formed in a vertical. plate 216 mounted on the base of the. machine. When the arm 2033 is rocked clockwise the pin 201 engages a point 217 formed by the rear side of the slot 215 and the upper edge of the plate 216, thereby rocking the totalizer frame counter clockwise against. the tension of springs 218 which will be de scribed later. The slot 215 is inclined rearwardly so that as the pin moves down in the slot the springs 218 rock the totalizer frame to normal position. In this manner the slot 215 and pin 204 serves to hold the arm 2033'in its elevated and lowered positions. A counter weight 219 mounted on'an arm 220 fast to the shaft 209 is also employed to assist in holding the arm 2033 in one or the other of its positions.

The totalizer also includes transfer mechanism for carrying amounts from one register wheel to the register wheel of next higher order. The transfer mechanism disclosed herein is similar to that shown and described in United States Letters Patent, No. 915,090, granted March 16, 1909 to Frederick L. Fuller and therefore it need be described here but briefly. Up'ori a shaft 222 (Figs. 18 to 21 inclusive) mounted in the arm 203 and the lever 202 are loosely mounted sleeves 223, one for each; of the registering wheels except that of highest order. with a star wheel 224 and with a star wheel Each of these sleeves is provided 225. both rigid with the sleeve. The star wheel 224 is adapted to be rotated by a pin 232 projectin from a register wheel while the star whee 225 is adapted to be engaged by a cam 226 on a shaft 227 and when so rotated to engage the pinion 205 on the registering wheel of next higher order so as to rotate the latter one step. The shaft 227 is provided withfive cams 226, one for each of thetstar wheels 225. The star wheel 224: has four teeth and the star wheel 225 a like number of teeth, while a disk 221 fast on the, sleeve 223 is provided circumferentially with four pairs of notches 228 adapted to be engaged by projections 229 on detents 230. The detcnts 230 are loosely mounted on the shaft 135 and are connected by the springs 218 to arms 231 which are pivotally mounted on the cross rod 190 and serve to prevent overthrow of and accurately position the registering wheels. While a register wheeLis being moved to or beyond its zero position the pin 232 will engage that tooth on the star wheel 224 which then happens to be in its path of movement and rotate the star wheel, the sleeve 223, and the star wheel 225 so ,thata tooth on the star wheel 225 is in the path of movement of its cam 226,*tl1eprojection 229 on the corre sponding detent then being in engagement with the rear notch of one of the pairs of notches 228 in the disk 221 on the sleeve. When the shaft 227 is rotated clockwise (Fig. 18) as will be later described, the cams 226 will engage the star wheels 225 which have been rotated by the totalizer pinions to rotate further the sleeves and their star wheels the balance of avquarter rotation with the result that the next following tooth of the star wheel 225 will engage the inion 205 of theregister wheel of next big ier order and thus rotate the latter a distance equal to onestep. The fiveams 226- are arranged spirally on the shaft 227 so that when this shaft isrot'ated the cams will operate successively as is well known inthe art.

For the purpose of rotatingthe cams226 the shaft 227 upon which the cams are rlgidly mounted carries amnion-285 (Fig. 18) for cooperating with the disk 180. One of the teeth'ofithe pinion 285-ha-s been cut away and the twoteeth'on either side of this cut away tooth nori'nally engage the solid periphery ofth is disklBO so that the shaft 227 is loekedagainst rotation while-the totalizer is in engagement with the teeth on the amount typegearriers148 After the totaliz'er'is rocked out of engagement with the teeth on thesetypecarriers the teeth 1-81 on the" diskil80 engage the teeth: on the pinion 235; thereby giving: the shaft 227 one CORP plate rotation. In ordertoprevent' overthrow of the register wheels when they are moved one step by the corresponding star wheels 225 the 13 

